顺着实验发下matlab计算器

本文主要是介绍顺着实验发下matlab计算器，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
本文实现了mlapp的简易计算器实现，并打包了app；
classdef calculator < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure              matlab.ui.Figure
        CEButton              matlab.ui.control.Button
        inputTextArea         matlab.ui.control.TextArea
        inputTextAreaLabel    matlab.ui.control.Label
        Button_21             matlab.ui.control.Button
        ResultsTextArea       matlab.ui.control.TextArea
        ResultsTextAreaLabel  matlab.ui.control.Label
        Button_20             matlab.ui.control.Button
        Button_14             matlab.ui.control.Button
        Button_15             matlab.ui.control.Button
        Button_16             matlab.ui.control.Button
        Button_17             matlab.ui.control.Button
        Button_13             matlab.ui.control.Button
        Button_12             matlab.ui.control.Button
        Button_11             matlab.ui.control.Button
        Button_19             matlab.ui.control.Button
        Button_18             matlab.ui.control.Button
        Button_10             matlab.ui.control.Button
        Button_9              matlab.ui.control.Button
        Button_3              matlab.ui.control.Button
        Button_8              matlab.ui.control.Button
        Button_7              matlab.ui.control.Button
        Button_6              matlab.ui.control.Button
        Button_5              matlab.ui.control.Button
        Button_4              matlab.ui.control.Button
        Button_2              matlab.ui.control.Button
        Button                matlab.ui.control.Button
    end

    % Callbacks that handle component events
    methods (Access = private)

        % Button pushed function: Button_15
        function Button_15Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'0');
           end
        end

        % Button pushed function: Button
        function ButtonPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='1';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'1');
            end
        end

        % Button pushed function: Button_2
        function Button_2Pushed(app, event)
         numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='2';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'2');
            end
        end

        % Button pushed function: Button_3
        function Button_3Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='3';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'3');
            end
        end

        % Button pushed function: Button_4
        function Button_4Pushed(app, event)
          numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='4';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'4');
            end
        end

        % Button pushed function: Button_5
        function Button_5Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='5';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'5');
            end
        end

        % Button pushed function: Button_6
        function Button_6Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='6';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'6');
            end
        end

        % Button pushed function: Button_7
        function Button_7Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='7';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'7');
            end
        end

        % Button pushed function: Button_8
        function Button_8Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='8';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'8');
            end
        end

        % Button pushed function: Button_9
        function Button_9Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='9';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'9');
            end
        end

        % Button pushed function: Button_16
        function Button_16Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='pi';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'pi');
            end
        end

        % Button pushed function: Button_14
        function Button_14Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'.');
        end

        % Button pushed function: Button_10
        function Button_10Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'+');
        end

        % Button pushed function: Button_18
        function Button_18Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'-');
        end

        % Button pushed function: Button_19
        function Button_19Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'*');
        end

        % Button pushed function: Button_20
        function Button_20Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'/');
        end

        % Button pushed function: Button_11
        function Button_11Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='(';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'(');
            end
        end

        % Button pushed function: Button_12
        function Button_12Pushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,')');
        end

        % Button pushed function: Button_21
        function Button_21Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            x=mat2str(numbers_mat);
            y1=eval(numbers_mat); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: CEButton
        function CEButtonPushed(app, event)
            app.inputTextArea.Value='0';
        end

        % Button pushed function: Button_13
        function Button_13Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('0-',numbers_mat);
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: Button_17
        function Button_17Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('100*',numbers_mat);
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=strcat(y,'%');
            app.inputTextArea.Value='0';
        end
    end

    % Component initialization
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'MATLAB App';

            % Create Button
            app.Button = uibutton(app.UIFigure, 'push');
            app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
            app.Button.Position = [174 306 60 22];
            app.Button.Text = '1';

            % Create Button_2
            app.Button_2 = uibutton(app.UIFigure, 'push');
            app.Button_2.ButtonPushedFcn = createCallbackFcn(app, @Button_2Pushed, true);
            app.Button_2.Position = [261 306 60 22];
            app.Button_2.Text = '2';

            % Create Button_4
            app.Button_4 = uibutton(app.UIFigure, 'push');
            app.Button_4.ButtonPushedFcn = createCallbackFcn(app, @Button_4Pushed, true);
            app.Button_4.Position = [174 243 60 24];
            app.Button_4.Text = '4';

            % Create Button_5
            app.Button_5 = uibutton(app.UIFigure, 'push');
            app.Button_5.ButtonPushedFcn = createCallbackFcn(app, @Button_5Pushed, true);
            app.Button_5.Position = [261 244 60 22];
            app.Button_5.Text = '5';

            % Create Button_6
            app.Button_6 = uibutton(app.UIFigure, 'push');
            app.Button_6.ButtonPushedFcn = createCallbackFcn(app, @Button_6Pushed, true);
            app.Button_6.Position = [354 244 60 22];
            app.Button_6.Text = '6';

            % Create Button_7
            app.Button_7 = uibutton(app.UIFigure, 'push');
            app.Button_7.ButtonPushedFcn = createCallbackFcn(app, @Button_7Pushed, true);
            app.Button_7.Position = [174 172 60 26];
            app.Button_7.Text = '7';

            % Create Button_8
            app.Button_8 = uibutton(app.UIFigure, 'push');
            app.Button_8.ButtonPushedFcn = createCallbackFcn(app, @Button_8Pushed, true);
            app.Button_8.Position = [261 174 60 22];
            app.Button_8.Text = '8';

            % Create Button_3
            app.Button_3 = uibutton(app.UIFigure, 'push');
            app.Button_3.ButtonPushedFcn = createCallbackFcn(app, @Button_3Pushed, true);
            app.Button_3.Position = [355 306 60 22];
            app.Button_3.Text = '3';

            % Create Button_9
            app.Button_9 = uibutton(app.UIFigure, 'push');
            app.Button_9.ButtonPushedFcn = createCallbackFcn(app, @Button_9Pushed, true);
            app.Button_9.Position = [355 174 60 22];
            app.Button_9.Text = '9';

            % Create Button_10
            app.Button_10 = uibutton(app.UIFigure, 'push');
            app.Button_10.ButtonPushedFcn = createCallbackFcn(app, @Button_10Pushed, true);
            app.Button_10.Position = [448 306 60 22];
            app.Button_10.Text = '+';

            % Create Button_18
            app.Button_18 = uibutton(app.UIFigure, 'push');
            app.Button_18.ButtonPushedFcn = createCallbackFcn(app, @Button_18Pushed, true);
            app.Button_18.Position = [448 244 60 22];
            app.Button_18.Text = '-';

            % Create Button_19
            app.Button_19 = uibutton(app.UIFigure, 'push');
            app.Button_19.ButtonPushedFcn = createCallbackFcn(app, @Button_19Pushed, true);
            app.Button_19.Position = [448 174 60 22];
            app.Button_19.Text = '*';

            % Create Button_11
            app.Button_11 = uibutton(app.UIFigure, 'push');
            app.Button_11.ButtonPushedFcn = createCallbackFcn(app, @Button_11Pushed, true);
            app.Button_11.Position = [76 303 66 25];
            app.Button_11.Text = '（';

            % Create Button_12
            app.Button_12 = uibutton(app.UIFigure, 'push');
            app.Button_12.ButtonPushedFcn = createCallbackFcn(app, @Button_12Pushed, true);
            app.Button_12.Position = [75 240 66 26];
            app.Button_12.Text = '      ）';

            % Create Button_13
            app.Button_13 = uibutton(app.UIFigure, 'push');
            app.Button_13.ButtonPushedFcn = createCallbackFcn(app, @Button_13Pushed, true);
            app.Button_13.Position = [75 174 66 22];
            app.Button_13.Text = '±';

            % Create Button_17
            app.Button_17 = uibutton(app.UIFigure, 'push');
            app.Button_17.ButtonPushedFcn = createCallbackFcn(app, @Button_17Pushed, true);
            app.Button_17.Position = [174 107 60 22];
            app.Button_17.Text = '%';

            % Create Button_16
            app.Button_16 = uibutton(app.UIFigure, 'push');
            app.Button_16.ButtonPushedFcn = createCallbackFcn(app, @Button_16Pushed, true);
            app.Button_16.Position = [75 106 66 22];
            app.Button_16.Text = 'π';

            % Create Button_15
            app.Button_15 = uibutton(app.UIFigure, 'push');
            app.Button_15.ButtonPushedFcn = createCallbackFcn(app, @Button_15Pushed, true);
            app.Button_15.Position = [261 107 60 22];
            app.Button_15.Text = '0';

            % Create Button_14
            app.Button_14 = uibutton(app.UIFigure, 'push');
            app.Button_14.ButtonPushedFcn = createCallbackFcn(app, @Button_14Pushed, true);
            app.Button_14.Position = [355 107 60 22];
            app.Button_14.Text = '.';

            % Create Button_20
            app.Button_20 = uibutton(app.UIFigure, 'push');
            app.Button_20.ButtonPushedFcn = createCallbackFcn(app, @Button_20Pushed, true);
            app.Button_20.Position = [448 107 60 22];
            app.Button_20.Text = '/';

            % Create ResultsTextAreaLabel
            app.ResultsTextAreaLabel = uilabel(app.UIFigure);
            app.ResultsTextAreaLabel.HorizontalAlignment = 'right';
            app.ResultsTextAreaLabel.Position = [388 425 46 22];
            app.ResultsTextAreaLabel.Text = 'Results';

            % Create ResultsTextArea
            app.ResultsTextArea = uitextarea(app.UIFigure);
            app.ResultsTextArea.Position = [449 369 152 80];

            % Create Button_21
            app.Button_21 = uibutton(app.UIFigure, 'push');
            app.Button_21.ButtonPushedFcn = createCallbackFcn(app, @Button_21Pushed, true);
            app.Button_21.Position = [534 106 67 222];
            app.Button_21.Text = '=';

            % Create inputTextAreaLabel
            app.inputTextAreaLabel = uilabel(app.UIFigure);
            app.inputTextAreaLabel.HorizontalAlignment = 'right';
            app.inputTextAreaLabel.Position = [158 423 31 22];
            app.inputTextAreaLabel.Text = 'input';

            % Create inputTextArea
            app.inputTextArea = uitextarea(app.UIFigure);
            app.inputTextArea.Position = [204 367 152 80];

            % Create CEButton
            app.CEButton = uibutton(app.UIFigure, 'push');
            app.CEButton.ButtonPushedFcn = createCallbackFcn(app, @CEButtonPushed, true);
            app.CEButton.Position = [75 370 66 75];
            app.CEButton.Text = 'CE';

            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = calculator

            % Create UIFigure and components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end
View Code
实现界面：
参考文献：
https://wenku.baidu.com/view/2b3e8644f41fb7360b4c2e3f5727a5e9846a27fa.html
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